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Questions  

Figure shows a thin metallic triangular sheet ABC. The mass of the sheet is M. The moment of inertia of the sheet about side AC is

a
Ml218
b
Ml212
c
Ml26
d
Ml24

detailed solution

Correct option is B

Moment of inertia of ABC about AC=12×moment of inertia of square sheet ABCD about AC=12×[2M]×l212=Ml212

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